Finding the Fourth Proportional to 98,942,122.46, 136,540,289.63 and 54,889,122.44
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Solution
The fourth proportional to 98,942,122.46, 136,540,289.63 and 54,889,122.44 is: 75,747,078.08
Step by Step Solution
- Step 1: Write the proportion equation
98,942,122.46 : 136,540,289.63 = 54,889,122.44 : x - Step 2: Convert to fraction form
98,942,122.46/136,540,289.63 = 54,889,122.44/x - Step 3: Cross multiply
98,942,122.46x = 136,540,289.63 × 54,889,122.44 - Step 4: Simplify right side
98,942,122.46x = 7,494,576,675,561,038 - Step 5: Solve for x
x = 7,494,576,675,561,038/98,942,122.46 - Step 6: Final answer
x = 75,747,078.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.